Retrieving "Etched Dot Technique" from the archives

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1. Mature Harappan Period

   Linked via "etched-dot technique"

   Lapis Lazuli: Sourced almost exclusively from Badakhshan (modern Afghanistan).
   Copper Ingots: Primarily derived from Khetri (Rajasthan).
   Carnelian Beads: Sourced from Gujarat, these beads often exhibit the "etched-dot technique," a complex chemical engraving process hypothesized to require temporary exposure…